<template>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input type="text" v-model.trim="name" />
    </div>
    <div>
      <span>年龄:</span>
      <input type="number" v-model.number="age" />
    </div>
    <div>
      <span>性别:</span>
      <select v-model="sex">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="addFn">添加/修改</button>
    </div>
    <div>
      <table border="1" cellpadding="10" cellspacing="0">
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="(item, index) in list" :key="item.id">
          <td>{{ index + 1 }}</td>
          <td>{{ item.name }}</td>
          <td>{{ item.age }}</td>
          <td>{{ item.sex }}</td>
          <td>
            <button @click="delFn(item.id)">删除</button>
            <button @click="editFn(item.id)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      flag: "",
      name: "",
      age: 0,
      sex: "",
      list: [
        {
          id: 10,
          name: "xm",
          age: 10,
          sex: "男",
        },
        {
          id: 11,
          name: "xh",
          age: 11,
          sex: "女",
        },
        {
          id: 12,
          name: "xhua",
          age: 12,
          sex: "男",
        },
      ],
    };
  },
  methods: {
    //添加
    addFn() {
      if (this.flag === "") {
        if (
          this.name.length === 0 ||
          this.name.age < 0 ||
          this.sex.length === 0
        ) {
          return alert("请输入完整信息");
        }
        this.list.unshift({
          id: +new Date(),
          name: this.name,
          age: this.age,
          sex: this.sex,
        });
      } else {
        // console.log("编辑");
        this.flag.name = this.name;
        this.flag.age = this.age;
        this.flag.sex = this.sex;
      }
      this.flag = "";
      this.name = "";
      this.age = 0;
      this.sex = "";
    },
    // 删除
    delFn(id) {
      this.list = this.list.filter((item) => item.id !== id);
    },
    // 编辑
    editFn(id) {
      const obj = this.list.find((item) => item.id === id);
      //   console.log(obj);
      this.flag = obj;
      this.name = obj.name;
      this.age = obj.age;
      this.sex = obj.sex;
    },
  },
};
</script>

<style scoped>
button {
  border: 1px solid #333;
}
</style>
